*{margin: 0; padding: 0;}

body{ position: relative; background-color: #101010;}

#header{width: 80%; height: 200px; margin: 0 auto; position: relative;   /* background-color: blue; */}

#ad{width: 10%; height: 350px; border-color: red; position: fixed; margin-top: 40px;right: 0;overflow: hidden; z-index: 2; /* background-color: red; */}

#content {width: 80%; margin-left: 10%;height: 800px; background-color: white;  margin-top: 80px; position: relative; border: solid #FF9900; border-radius: 20px; overflow: hidden;}

#footer{width: 80%; height: 440px;/* background-color: orangered; */ margin-top: 80px; margin-left: 10%;position: relative;}

/* 语言切换 */

.cn{display: none;}

